blustealer | f6743599ef8f0c90e862c9f7ef8fc0718f7faf6315797e06c43ed4b14686be23

General

Target

SecuriteInfo.com.Variant.Lazy.243500.8429.32613.exe
Size

171KB
MD5

49d5d24cbb05b73ff7b6b5202562bea6
SHA1

9fc158a090dc9d12d9281baac20d4aec2e223c16
SHA256

f6743599ef8f0c90e862c9f7ef8fc0718f7faf6315797e06c43ed4b14686be23
SHA512

f44d5cb085c375b6027fd2fd40d7e1f1ed27082c47007e2750fe0174c1295ed52a0edbc8929fea4739f858ca7f352947f14a6522514b34ba127fc3393a26ab8b
SSDEEP

3072:kxr/raVa3+8U1wNSuI1CzT1f/yMvAOhaKKDGI5BvlAgqod/Nk/YPR2yfkHm:kxSVlwI1WycAOhaKiGaZlAgqE/Nk/YPv

Score

10^/10

blustealer stormkitty collection spyware stealer

Malware Config

Extracted

Family

blustealer

C2

https://api.telegram.org/bot5627356603:AAG-Mx0TbSHRRW6IwndrpX3VLZdhd6C-Zac/sendMessage?chat_id=5472437377

Signatures

BluStealer
A Modular information stealer written in Visual Basic.
stealer blustealer
StormKitty
StormKitty is an open source info stealer written in C#.
stealer stormkitty

StormKitty payload 1 IoCs

resource	yara_rule
behavioral2/memory/724-142-0x0000000000F20000-0x0000000000F3A000-memory.dmp	family_stormkitty

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
12	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 5040 set thread context of 888	5040	SecuriteInfo.com.Variant.Lazy.243500.8429.32613.exe	80
PID 888 set thread context of 724	888	cvtres.exe	81

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	AppLaunch.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	AppLaunch.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
5040	SecuriteInfo.com.Variant.Lazy.243500.8429.32613.exe
5040	SecuriteInfo.com.Variant.Lazy.243500.8429.32613.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	5040	SecuriteInfo.com.Variant.Lazy.243500.8429.32613.exe
Token: SeDebugPrivilege	724	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
888	cvtres.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 5040 wrote to memory of 1896	5040	SecuriteInfo.com.Variant.Lazy.243500.8429.32613.exe	79
PID 5040 wrote to memory of 1896	5040	SecuriteInfo.com.Variant.Lazy.243500.8429.32613.exe	79
PID 5040 wrote to memory of 1896	5040	SecuriteInfo.com.Variant.Lazy.243500.8429.32613.exe	79
PID 5040 wrote to memory of 888	5040	SecuriteInfo.com.Variant.Lazy.243500.8429.32613.exe	80
PID 5040 wrote to memory of 888	5040	SecuriteInfo.com.Variant.Lazy.243500.8429.32613.exe	80
PID 5040 wrote to memory of 888	5040	SecuriteInfo.com.Variant.Lazy.243500.8429.32613.exe	80
PID 5040 wrote to memory of 888	5040	SecuriteInfo.com.Variant.Lazy.243500.8429.32613.exe	80
PID 5040 wrote to memory of 888	5040	SecuriteInfo.com.Variant.Lazy.243500.8429.32613.exe	80
PID 5040 wrote to memory of 888	5040	SecuriteInfo.com.Variant.Lazy.243500.8429.32613.exe	80
PID 5040 wrote to memory of 888	5040	SecuriteInfo.com.Variant.Lazy.243500.8429.32613.exe	80
PID 5040 wrote to memory of 888	5040	SecuriteInfo.com.Variant.Lazy.243500.8429.32613.exe	80
PID 888 wrote to memory of 724	888	cvtres.exe	81
PID 888 wrote to memory of 724	888	cvtres.exe	81
PID 888 wrote to memory of 724	888	cvtres.exe	81
PID 888 wrote to memory of 724	888	cvtres.exe	81
PID 888 wrote to memory of 724	888	cvtres.exe	81

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Variant.Lazy.243500.8429.32613.exe
"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Variant.Lazy.243500.8429.32613.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5040
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"
  2⤵
  PID:1896
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:888
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    3⤵
    - Accesses Microsoft Outlook profiles
    - Checks processor information in registry
    - Suspicious use of AdjustPrivilegeToken
    - outlook_office_path
    - outlook_win_path
    PID:724

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/724-142-0x0000000000F20000-0x0000000000F3A000-memory.dmp

Filesize
104KB

Download
memory/724-143-0x0000000005490000-0x00000000054F6000-memory.dmp

Filesize
408KB

Download
memory/724-144-0x0000000005F80000-0x000000000601C000-memory.dmp

Filesize
624KB

Download
memory/888-133-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/888-137-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/888-141-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/888-146-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/5040-132-0x0000000000830000-0x0000000000860000-memory.dmp

Filesize
192KB

Download
memory/5040-136-0x00007FFEE8F20000-0x00007FFEE99E1000-memory.dmp

Filesize
10.8MB

Download
memory/5040-145-0x00007FFEE8F20000-0x00007FFEE99E1000-memory.dmp

Filesize
10.8MB

Download

Analysis

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